CVS log for src/sys/vfs/ntfs/ntfs_ihash.c

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Keyword substitution: kv
Default branch: MAIN

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t.  Change struct specinfo to struct cdev.  The name 'cdev' was taken
from FreeBSD.  Remove the dev_t shim for the kernel.

This commit generally removes the overloading of 'dev_t' between userland and
the kernel.

Also fix a bug in libkvm where a kernel dev_t (now cdev_t) was not being
properly converted to a userland dev_t.

Rename malloc->kmalloc, free->kfree, and realloc->krealloc.  Pass 1

Pass LK_PCATCH instead of trying to store tsleep flags in the lock
structure, so multiple entities competing for the same lock do not
use unexpected flags when sleeping.

Only NFS really uses PCATCH with lockmgr locks.

Style(9) cleanup to src/sys/vfs, stage 11/21: ntfs.

- Convert K&R-style function definitions to ANSI style.

Submitted-by: Andre Nathan <andre@digirati.com.br>
Additional-reformatting-by: cpressey

Newtoken commit.  Change the token implementation as follows:  (1) Obtaining
a token no longer enters a critical section.  (2) tokens can be held through
schedular switches and blocking conditions and are effectively released and
reacquired on resume.  Thus tokens serialize access only while the thread
is actually running.  Serialization is not broken by preemptive interrupts.
That is, interrupt threads which preempt do no release the preempted thread's
tokens.  (3) Unlike spl's, tokens will interlock w/ interrupt threads on
the same or on a different cpu.

The vnode interlock code has been rewritten and the API has changed.  The
mountlist vnode scanning code has been consolidated and all known races have
been fixed.  The vnode interlock is now a pool token.

The code that frees unreferenced vnodes whos last VM page has been freed has
been moved out of the low level vm_page_free() code and moved to the
periodic filesystem sycer code in vfs_msycn().

The SMP startup code and the IPI code has been cleaned up considerably.
Certain early token interactions on AP cpus have been moved to the BSP.

The LWKT rwlock API has been cleaned up and turned on.

Major testing by: David Rhodus

minor syntax cleanup

Fix a ``missing free''.

The NTFS Inode hashing code did not free the inode hash, which caused
the following warning at unload time.  This is only noticed when NTFS
is loaded as a KLD module:

   malloc_uninit: 32768 bytes of 'NTFS nthash' still allocated on cpu0

Use vfs_uninit() entry point to solve this issue, by calling (new)
ntfs_nthash_uninit() function to release the NT inode hash.

kernel tree reorganization stage 1: Major cvs repository work (not logged as
commits) plus a major reworking of the #include's to accomodate the
relocations.

    * CVS repository files manually moved.  Old directories left intact
      and empty (temporary).

    * Reorganize all filesystems into vfs/, most devices into dev/,
      sub-divide devices by function.

    * Begin to move device-specific architecture files to the device
      subdirs rather then throwing them all into, e.g. i386/include

    * Reorganize files related to system busses, placing the related code
      in a new bus/ directory.  Also move cam to bus/cam though this may
      not have been the best idea in retrospect.

    * Reorganize emulation code and place it in a new emulation/ directory.

    * Remove the -I- compiler option in order to allow #include file
      localization, rename all config generated X.h files to use_X.h to
      clean up the conflicts.

    * Remove /usr/src/include (or /usr/include) dependancies during the
      kernel build, beyond what is normally needed to compile helper
      programs.

    * Make config create 'machine' softlinks for architecture specific
      directories outside of the standard <arch>/include.

    * Bump the config rev.

    WARNING! after this commit /usr/include and /usr/src/sys/compile/*
    should be regenerated from scratch.

Remove the priority part of the priority|flags argument to tsleep().  Only
flags are passed now.  The priority was a user scheduler thingy that is not
used by the LWKT subsystem.  For process statistics assume sleeps without
P_SINTR set to be disk-waits, and sleeps with it set to be normal sleeps.

This commit should not contain any operational changes.

MP Implementation 1/2: Get the APIC code working again, sweetly integrate the
MP lock into the LWKT scheduler, replace the old simplelock code with
tokens or spin locks as appropriate.  In particular, the vnode interlock
(and most other interlocks) are now tokens.  Also clean up a few curproc/cred
sequences that are no longer needed.

The APs are left in degenerate state with non IPI interrupts disabled as
additional LWKT work must be done before we can really make use of them,
and FAST interrupts are not managed by the MP lock yet.  The main thing
for this stage was to get the system working with an APIC again.

buildworld tested on UP and 2xCPU/MP (Dell 2550)

Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids.  Most
ids have been removed from !lint sections and moved into comment sections.

import from FreeBSD RELENG_4 1.7